Cover lock or shroud for book match folders



March19, 1968 Y 'r. WILL 7 3,373,866

COVER LOCK OR SHRQUD FOR BOOK MATCH FOLDERS Filed June 10. 1966 Sheets-Sheet 1 -r 10 29-5. H H

H l M Pf INVENT OR 777620610/"6 7 Hi Z Z March 19, 1968 T. WILL 3,373,866

COVER LOCK OR SHROUD FOR BOOK MATCH FOLDERS Filed June 10, 1966 3 Sheets-Sheet 9 INVENT OR BY WW A7TL7RNE 5 March 19, 1968 T. WILL I 3,373,866

COVER LOCK OR SHRDUD 'FOR BOOK MATCH FOLDERS I Filed June 10, 1966 3 Sheets-Sheet 5 Theodore wu/ BY inn/W35 INVENTOR United States Patent Oflfice 3,373,866 Patented Mar. 19, 1968 3,373,866 7 COVER LOCK R SHROUD FOR BOOK MATCH FOLDERS Theodore Will, Syosset, N.Y., assignor to Fund Del Inc., Syosset, N.Y., a corporation of New York Filed June 10, 1966, Ser. No. 556,687 Claims. (Cl. 206-29) This invention concerns an improved cover lock or shroud for a matchbook and particularly concerns improvements upon the cover locks of the type shown and described in my prior United States Patent No. 2,996,- 174.

Cover locks heretofore known for matchbooks or the like have had a number of deficiencies which precluded their general use. They have been fragile in construction so that they tore easily. They were difficult to manipulate for removing and inserting matchbooks. They did not cover the matchbooks so that the striking panels and matches themselves were exposed to moisture. They were notadapted to be manufactured by mass production methods so that they could be manufactured at low cost. They could not be shipped and stored in interconnected, flattened condition to be set up later for insertion of matchbooks. They were not reusable for different make matchbooks because of the varied width of the top narrow cover panels of these matchbooks and because they fell apart by the time one book of watches was used up. They did not hold the Wedge-shaped matchbooks securely enough so that the matchbooks slipped out of the cover locks, or could not even be inserted because of the narrow top open width of the cover locks.

The present invention is directed at overcoming the above difficulties and disadvantages of prior cover locks for matchbooks, and has as a principal object provision of a durable reusable cover lock for a matchbook. The cover lockcan be made of flexible sheet material such as metal, plastic, fiberboard, cardboard, plastic and the like or of molded plastic. The cover lock is tubular in form and wedge shaped in construction, open at the topand open at the bottom. It substantially covers a matchbook for its entire length on front, back and sides. It has a reinforced back for greater strength. Corners of the cover lock are slit to facilitate insertion and removal of the matchbook and to define flexible, expandable springy flaps which securely engage the front, back and sides of the matchbook by compressing for a pressurized grip upon the matchbook and to compensate for any varying thicknesses of the top narrow cover panel of the matchbooks. One panel has a thumb notch to facilitate dislodging the matchbook gripped in the cover lock.

For further comprehension of the invention and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

FIGURE 1 is an exploded perspective view of an assembly ofa matchbook and cover lock according to the invention.

FIG. 2 is a top plan view on an enlarged scale of the cover lock.

7 FIG. 3 is a cross sectional view taken on line 3-3 of FIG. 1.

FIG. 4 is a front and side perspective view of the cover lock of FIG. 1, with the matchbook partially inserted therein.

FIG. 5 is a front and side perspective view of the cover lock with matchbook fully inserted therein.

FIG. 6 is a rear and side perspective view of the cover lock with matchbook partially removed therefrom.

FIG. 7 is a plan view of a single blank which can be set up to form a cover lock.

FIG. 8 is a plan View of an interconnected assembly of cover locks in blank form.

FIG. 9 is a perspective view of an interconnected assembly of cover locks illustrating a step in a folding process.

FIG. 10 is a perspective view of an interconnected assembly of cover locks in flattened condition before separation into individual cover locks prior to the insertion of the matchbooks.

FIG. 11 is a perspective view of a modified form of cover lock.

FIG. 12 is a fragmentary sectional view taken on line 1212 of FIG. 11.

FIG. 13 is a perspective view of the cover lock of FIG. 11 with a matchbook therein.

FIG. 14 is a front elevational view of another cover lock,

FIG. 15 is a cross sectional view taken on line 15-15 of FIG. 14, and

FIG. 16 is a cross-sectional view of another endless band cover lock.

Referring first to FIGS. 1-6, there is shown a cover lock 10 embodying the invention. This device is made of a relatively thin flexible sheet of metal, plastic, laminated paper or metal foil, cardboard, fiberboard or other suitable material. The cover lock 10 has a rectangular back panel P1 joined to a narrow tapered side panel P2 by a vertical fold line F1. Fold line F1 terminates a short distance from the upper horizontal edge E1 of panel P1 to define a first short slit S1. The lower edge E2 of panel P2 is narrower than the upper edge E3 of panel P2. Joined to side panel P2 by a vertical fold line F2 is rectangular front panel P3. The lower horizontal edge E4 of panel P3 is equal in length to the upper horizontal edge E5. Fold line F2 terminates short of the upper edges of panels P2 and P3 to define a short slit S2, these slits forming flexible, expandable and springy relief portions at the top of each panel.

Joined to front panel P3 by a vertical fold line F3 is a narrow tapered panel P4 defining the opposite side of the cover lock. Fold line F3 terminates short of the upper edges E5 and E6 of panels P3, P4 to define a short slit S3. The bottom edge E7 of panel P4 is narrower than its upper edge E6. Joined to the panel P4 by a vertical fold line F4 is an inner back panel P5. Panel P5 has a cut off bottom corner C1. The fold line F4 terminates short of the upper edges E6 and E8 of panels P4, P5 to define a short slit S4. These slits S1, S2, S3 and S4 form flexible, expandable and springy relief portions at the top of each panel that permit the insertion of varied size match packages and will securely grip and lock the matchbooks into the cover lock. The outer or rear side 22 of panel P5 abuts the inner or forward side 24 of panel P1. 'An adhesive layer 25 between the two panels P1 and P5 secures the two panels together. Panel P5 is narrower than panel P1, but is sufficiently wide to effect a secure seal to panel P1 and to stiffen a section of this panel at the rear of the cover lock 10. An arcuate notch 26 is formed in the bottom edge E1 of panel P1. The cutoff corner C1 of panel P5 is located just above one end of this notch.

The setup, assembled cover lock 10 is tubular in form, open at the top and open at the bottom with closed front and back walls, and with closed opposite side walls. The cover lock is rectangular in cross section as shown in FIG. 3. The cover lock is wedge shaped and defines a wedge shaped open ended compartment 30. The upper open end of the compartment is equal in horizontal width to the lower open end of the compartment, taken transversely 3 across the cover lock from between side panels P2 and P4. The compartment 30 is wider at the open top than at the open bottom. The panel P projects by its thickness into compartment 30 for its full length and width to create a double thickness with back panel P1.

The slits S1-S4 define narrow flexible expandable springy flap-like portions FL1FL5 at the upper ends of panels Pl-PS. The overlapped flap-like portions FLl and FLS at the back of the cover lock have less flexibility due to their overlapped condition and double thickness to further assist in locking the matchbook in the cover lock.

Due to the tapered or Wedge-shaped construction of the cover lock 10, the wedge shaped closed matchbook 40 Will fit snugly into compartment 30. The cover lock has a length substantially equal to that of the closed matchbook to be inserted therein. After insertion the top cover panel 47 of the matchbook 40 is exposed at the top open end of the cover lock and the bottom fold of the matchbook is exposed at the bottom open end of the cover lock. Thus the striking panel 41 of the matchbook is covered and protected at the front of the cover lock, or at the back if the matchbook is reversed in position, or if the striking coating 41 is located at the back of the match book. The side panels P2 and P4 substantially close the open sides of the matchbook and fully protect the otherwise exposed matches 44. The match layers 44 are held in the match folder panels by a staple fastener 45 in the usual manner providing the bottom fold of the matchbook 40.

When the matchbook is fully inserted into the cover lock as shown in FIG. 5, the flexible, expandable, springy flap-like portions FLl-FLS press against the front and back panels and the side edges of the matchbook to provide a pressurized grip upon the same to frictionally hold it in place in the cover lock. In addition, the inside panel P5 lies within the compartment and presses against the back panel 46 of the matchbook while the front panel P3 of the cover lock presses against the front panels 41 and 48 of the matchbook. The inside panel P5 adhered to back panel P1 provides a doubly stiffening thickness and narrowing compartment 30 to give added pressure against the matchbook. Narrow top cover panel 47 of the matchbook itself covers the assembly on top. The width of the top open end of the cover lock is slightly narrower than the top cover panel 47 of the book match folder. This will allow the cover lock to accommodate varying size matchbook folders by expanding the top flexible expandable springy flap-like portions FLl-FLS.

Since the cover lock or shroud 10 is substantially the length of the inner book match folder 40 full protection against crushing of the book match is afforded the front panel P3 of the cover lock extends below and covers the striking surface material S on the short front panel 41 of the matchbook so that it is protected from moisture and dirt. The front and rear panels of the cover lock 10 form with the matchbook panels a double thickness front and rear wall against the matches themselves.

The notch 26 exposes a lower portion of the inner matchbook for engagement by a thumb of a user as shown in FIG. 6 to facilitate removal of the matchbook from the cover lock. In addition, any one of springy flaplike portions FLl-FLS of the cover lock 10 provided by the slits S1-S4 can be bent inwardly or outwardly to facilitate getting a good grip on side ends of top panel 47 of the matchbook for removing it from the top open end of the cover lock. This thumb notch 26 is at the center bottom end of the rear outer cover panel to assist in pushing the matchbook from the bottom open end of the cover lock upwardly and outwardly for removal from the cover lock.

FIG. 7 shows a single cover lock 10 in blank form 10a. Parts corresponding to those of cover lock 10 already described are identically numbered. The fold lines F1-F4 are preformed and adhesive layer 25 is applied to the front side 22 of panel P5 to enable it to be secured to 4 the inner side 24 of back panel P1. The slits 81-84 are precut to form the flexible, expandable springy flap-like portions at the top of all the panels P1P5.

FIG. 10 shows an assembly 10b of interconnected separable cover locks 10 in flattened adhered form in which panel P2 is coplanar with panel P3, and panel P4 is coplanar with panel PS. and adhered thereto. Panel P5 is interposed between panels P1 and P3. The cover locks are joined by perforated score lines L1, L2 and L3, FIG. 8, so that the individual cover locks can easily be separated prior to insertion of the matchbook therein.

FIG. 8 shows an assembly 10b of separable, interconnected, flat unadhered blanks 10a. Parts of the cover locks corresponding to those of blank 10a and cover lock 10 are identically numbered.

FIG. 9 shows a step in a process for assembling the assembly 10b of FIG. 10 from the assembly 10b of interconnected blanks 10a of FIG. 8. The flat interconnected blanks are shown being passed between a folding plate 50 to form the fold F3 in a continuous straight line fold throughout the several blanks, whereas the tapered folds F1 are individually folded in a tapered fashion assisted by the slits S1. Some of the panels P1 and P5 of each blank are shown separated from corresponding panels of adjacent blanks only for illustrative purposes to show the ready separability of the several blanks to individual cover locks prior to insertion of the matchbooks.

A multiplicity of assemblies 10b shown in FIG. 10 can be stacked and shipped in compact form. The cover locks are then separated from each other and set up for individual insertion of matchbooks very rapidly and conveniently.

A multiplicity of unadhered blank assemblies 10b of FIG. 8 can also be stacked and shipped in compact form to a point of folding and assembly to form the set-up assemblies 10b. The assemblies 10b and 10b can have any desired length with any desired number of cover locks in each assembly.

FIGS. 11l3 show another cover lock 10c which is similar to cover lock 10 and corresponding parts are identically numbered. A die cut opening 52 can be formed in front panel P3 to expose advertising indicia 54 on the front panel of the matchbook. If desired a transparent window 56 can be applied over the opening 52 to close the front of the cover lock, FIG. 12. Besides offering protection to the matchbook, the window 56 serves as an additional thickness to grip the matchbook in the cover lock.

FIGS. 14 and 15 show a further cover lock 10d which is similar to cover lock 10 and corresponding parts are identically numbered. The front panel P3 is formed with an endless embossment 60 extending inwardly. The embossment serves as a supplementary gripping element to help hold the matchbook in the cover lock by providing added pressure upon the matchbook in addition to the overlapped areas of panels P1 and P5. Furthermore, the embossment can serve as an attractive frame for advertising indicia 62 on the front panel.

FIG. 16 shows a further cover lock 10a in the form of an endless band of sheet or molded plastic in which the top slits may or may not be provided.

In all forms of the assembled cover locks described, there is provided a device which can be reused repeatedly for a succession of matchbooks to keep them closed and protected from dust, moisture and accidental opening.

The cover locks can be made at very low cost by mass production paper, plastic or metal working machinery. They are durable in construction and will provide long useful service. They are inexpensive enough so that they can be given away complete with the matchbooks as advertising novelties or favors.

While I have illustrated and described the preferred embodiments of my invention it is to be understood that I do not limit myself to the precise construction herein disclosed and that various changes and modifications may be made within the scope of the invention as defined in the appended claims.

What is claimed is:

1. A combined matchbook folder or the like and safety reusable cover lock or shroud, a matchbook folder being formed by a substantially rectangular strip of flexible sheet material, said strip having a plurality of transverse folds defining and joining a plurality of panels, a first one of said panels being narrow and connected to a second longer panel by a first fold, a plurality of match layers having matches joined at base ends of the layers, said base ends being interposed between the first and second panels, fastener means engaging the match layers and the first and second panels to hold the match layers in the folder, a striking surface disposed along the outer surface of said narrow panel, said first panel forming a part of a front side of the folder, the second panel forming a rear imperforate cover side of the folder, a narrow third one of the panels joined to the second panel by a second fold and defining a top imperforate cover panel of the folder, a fourth longer panel joined to the third panel by a third fold and defining a front imperforate cover panel for the folder in cooperation with the first panel when disposed thereunder so as to form a complete inner cover for the matches, and an outer safety reusable cover lock or shroud adapted to be slidably and removably disposed over said matchbook folder comprising a tapered tubular body of rectangular section and having opposite open top and bottom ends, and opposite closed front, back and sides, said outer safety cover being formed from a trimmed strip of flexible sheet material, having a plurality of preformed vertical folds. as opposed to the transverse folds of the matchbook folder, defining and joining a plurality of preformed panels, having a front wall, superimposed and sealed rear wall and two side walls, an open top end and narrower open bottom end, said front and side walls tapering downwardly and inwardly, a first narrow inner back panel to receive adhesive being part of a superimposed rear cover panel, a second narrower tapered panel connected to the first panel by a vertical fold slitted at the top end, defining a first outer side cover panel, a third larger panel joined to the outer first side cover panel by a second vertical fold slitted at the top end, and defining an outer front cover panel, a fourth narrow tapered panel of similar dimensions as the second narrow tapered panel joined to the outer front cover panel by a third vertical fold slitted at the top end, defining a second outer side cover panel, a fifth larger panel joined to the second outer side cover panel by a fourth vertical fold slitted at the top end, and when superimposed and adhered to the first narrow panel, defining a rear outer cover panel, said slitted folds defining flexible expandable, springy flap-like portions at the top of the panels and thereby opening and providing pressurized hold and release on front and rear cover panels of the inner matchbook, said superimposed and adhered rear outer wall providing a double thickness whereby reinforced compression is exerted on the rear inner cover panel of the matchbook for frictionalized hold and withdrawal of the inner matchbook whereby to form a complete outer cover adapted for said inner match folder to be inserted therein, through the top open end, the width of the top open end of the outer cover lock being narrower than the top cover panel of the inner book match to expand the flexible, expandable springy flap-like portions of the panels when the matchbook is inserted in the cover lock, the matches having two panels, namely the front outer cover panel of the cover lock and the front inner cover panel of the matchbook in front of the matches, two panels, namely, the rear outer cover panel of the cover lock and the rear inner cover panel of the matchbook behind the matches, a single top inner cover panel of the matchbook covering the top of the matches and the single outer side cover panels of the cover lock covering the open sides of the matches, when the matchbook is inserted into the safety reusable cover lock in closed condition, said outer reusable cover lock being unattached to and the inner matchbook being removable therefrom by pushing up the matchbook from the narrow open bottom end of the outer cover lock out of the top open end thereof and grasping both ends of the inner top cover panel of the matchbook and pulling the complete inner matchbook out of the cover lock from its top open end for opening and the use of the matchbook, and thereafter reinserting the matchbook through the top open end into the outer safety cover lock, for locking the inner cover of the matchbook, and doubling protection, said cover lock being slidably and removably disposed on the matchbook in an intermediate position between opposite ends thereof, said cover lock being substantially equal in length to said inner matchbook to cover the striking surface of the inner book match when the matchbook is inserted in the cover lock.

2. A combined matchbook or the like for storage retention in the cover lock, and safety reusable cover lock or shroud as defined in claim 1, said cover lock having a thumb notch at the center bottom end of the rear outer cover panel to assist in pushing the matchbook upwardly from the bottom narrow open end of the cover lock and outwardly from the top wide open end of the cover lock for removal from the cover lock.

3. A combined matchbook or the like and safety reusable cover lock or shroud as defined in claim 1, said cover lock being ornamentally die cut on the front outer cover panel to allow advertising indicia on the front inner cover panel of the matchbook to show through the cover lock panel, said matches still being protected by the front inner cover panel of the matchbook.

4. A combined matchbook or the like, and a safety reusable cover lock or shroud comprising a wedge-shaped matchbook being formed by a substantially rectangular strip of flexible sheet material, said strip having a plurality of transverse folds defining and joining a plurality of panels, a first one of said panels being narrow and connected to a second larger panel by a first fold, a plurality of match layers having matches joined at base ends of the layers, said base ends being interposed between the first and second panels, fastener means engaging the match layers and the first and second panels to hold the match layers in the folder, a striking surface disposed along the outer surface of said narrow panel, said first panel forming a front side of the folder, the second panel forming a rear cover panel, a third one of the panels joined to the second panel by a second fold and defining a top cover panel, for spacing the front and rear cover panels apart, a fourth larger panel joined to the third panel by a third fold defining a front cover panel for the folder in cooperation with the first narrow panel when disposed thereunder, so as to form a complete inner cover for the matches, said front and rear cover panels of the match- ,book being imperforate, and an outer reusable safety cover lock in the form of an endless preformed band extending around said matchbook, said band having opposite open top and bottom ends and opposite closed front. rear and sides and being slidably and removably disposed on the matchbook, said band being wedge shaped in cross section to lock on the matchbook in an intermediate position between opposite ends thereof; said band being substantially the length of said matchbook, said band having a front Wall, rear wall and two side walls, open top and narrower open bottom ends, the front and side walls tapering downwardly and inwardly, the width of the top open end of the cover lock being narrower than the top cover panel of the book match, said band having means projecting inwardly of said body from at least oneof Lhe walls to frictionally engage the matchbook in said and.

5. An assembly of separably interconnected cover locks for use with wedge-shaped matchbooks to be inserted therein after assembly is separated into individual cover locks, each of said cover locks comprising a wedge-shaped tubular body open at opposite top and bottom ends and generally rectangular in transverse cross section, said body having a multiplicity of interconnected panels, a first one of said panels being rectangular in form and defining a closed back wall for said body, a second one of said panels joined to the first panel by a first vertical fold line slitted at its top end, said second panel being tapered in form with wider top and narrower opposite bottom ends and defining one closed side wall of said body, a third panel joined to the second panel by a second vertical fold line slitted at its top end, said third panel being rectangular in form and defining a closed front wall of said body, a fourth panel joined to the third panel by a third vertical fold line slitted at its top end and defining a closed opposite side Wall of said. body, said fourth panel being tapered in form with wider top and narrower bottom opposite ends, a fifth narrower generally rectangular panel joined to the fourth panel by a fourth vertical fold line slitted at its top end, and adhesive means joining one side of said fifth panel to one side of said first panel to define a double layered back section for said body, said assembly being folded at one side on one continuous straight line fold, the several assembled cover locks and the folds at the opposite side being tapered individually and severally folded and assisted by the provision of the slitted top ends of the fold lines, opposite top and bottom ends of one panel of each intermediate one of the cover locks being joined by perforated, scored lines to the ends of corresponding panels respectively of adjacent cover locks for separating each cover lock prior to insertion of the matchbook, said bodies being flattened to facilitate storage and shipment and being only openable after separation to define an individual wedge-shaped compartment for insertion of an individual matchbook.

References Cited UNITED STATES PATENTS 1,670,343 5/ 1928 Clemens. 1,829,994 11/1931 Langley. 1,840,757 1/1932 Watkins 20656 2,059,392 11/1936 Polacsek 20629 3,033,361 5/1962 Will 20633 X 3,113,666 12/1963 Will 20629 JOSEPH R. LECLAIR, Primary Examiner.

LOUIS G. MANCENE, Examiner.

J. M. CASKIE, Assistant Examiner. 

1. A COMBINED MATCHBOOK FOLDER OR THE LIKE AND SAFETY REUSABLE COVER LOCK OR SHROUD, A MATCHBOOK FOLDER BEING FORMED BY A SUBSTANTIALLY RECTANGULAR STRIP OF FLEXIBLE SHEET MATERIAL, SAID STRIP HAVING A PLURALITY OF TRANSVERSE FOLDS DEFINING AND JOINING A PLURALITY OF PANELS, A FIRST ONE OF SAID PANELS BEING NARROW AND CONNECTED TO A SECOND LONGER PANEL BY A FIRST FOLD, A PLURALITY OF MATCH LAYERS HAVING MATCHES JOINED AT BASE ENDS OF THE LAYERS, SAID BASE ENDS BEING INTERPOSED BETWEEN THE FIRST AND SECOND PANELS, FASTENER MEANS ENGAGING THE MATCH LAYERS AND THE FIRST AND SECOND PANELS TO HOLD THE MATCH LAYERS IN THE FOLDER, A STRIKING SURFACE DISPOSED ALONG THE OUTER SURFACE OF SAID NARROW PANEL, SAID FIRST PANEL FORMPART OF A FRONT SIDE OF THE FOLDER, THE SECOND PANEL FORMING A REAR IMPERFORATE COVER SIDE OF THE FOLDER, A NARROW THIRD ONE OF THE PANELS JOINED TO THE SECOND PANEL BY A SECOND FOLD AND DEFINING A TOP IMPERFORATE COVER PANEL OF THE FOLDER, A FOURTH LONGER PANEL JOINED TO THE THIRD PANEL BY A THIRD FOLD AND DEFINING A FRONT IMPERFORATE COVER PANEL FOR THE FOLDER IN COOPERATION WITH THE FIRST PANEL WHEN DISPOSED THEREUNDER SO AS TO FORM A COMPLETE INNER COVER FOR THE MATCHES, AND AN OUTER SAFETY REUSABLE COVER LOCK OR SHROUD ADAPTED TO BE SLIDABLY AND REMOVABLY DISPOSED OVER SAID MATCHBOOK FOLDER COMPRISING A TAPERED TUBULAR BODY OF RECTANGULAR SECTION AND HAVING OPPOSITE OPEN TOP AND BOTTOM ENDS, AND OPPOSITE CLOSED FRONT, BACK AND SIDES, SAID OUTER SAFETY COVER BEING FORMED FROM A TRIMMED STRIP OF FLEXIBLE SHEET MATERIAL, HAVING A PLURALITY OF PREFORMED VERTICAL FOLDS, AS OPPOSED TO THE TRANSVERSE FOLDS OF THE MATCHBOOK FOLDER, DEFINING AND JOINING A PLURALITY OF PREFORMED PANELS, HAVING A FRONT WALL, SUPERIMPOSED AND SEALED REAR WALL AND TWO SIDE WALLS, AN OPEN TOP END AND NARROWER OPEN BOTTOM END, SAID FRONT AND SIDE WALLS TAPERING DOWNWARDLY AND INWARDLY, A FIRST NARROW INNER BACK PANEL TO RECEIVE ADHESIVE BEING PART OF A SUPERIMPOSED REAR COVER PANEL, A SECOND NARROWER TAPERED PANEL CONNECTED TO THE FIRST PANEL BY A VERTICAL FOLD SLITTED AT THE TOP END, DEFINING A FIRST OUTER SIDE COVER PANEL, A THIRD LARGER PANEL JOINED TO THE OUTER FIRST SIDE COVER PANEL BY A SECOND VERTICAL FOLD SLITTED AT THE TOP END, AND DEFINING AN OUTER FRONT COVER PANEL, A FOURTH NARROW TAPERED PANEL OF SIMILAR DIMENSIONS AS THE SECOND NARROW TAPERED PANEL JOINED TO THE OUTER FRONT COVER PANEL BY A THIRD VERTICAL FOLD SLITTED AT THE TOP END, DEFINING A SECOND OUTER SIDE COVER PANEL, A FIFTH LARGER PANEL JOINED TO THE SECOND OUTER SIDE COVER PANEL BY A FOURTH VERTICAL FOLD SLITTED AT THE TOP END, AND WHEN SUPERIMPOSED AND ADHERED TO THE FIRST NARROW PANEL, DEFINING A REAR OUTER COVER PANEL, SAID SLITTED FOLDS DEFINING FLEXIBLE EXPANDABLE, SPRINGY FLAP-LIKE PORTIONS AT THE TOP OF THE PANELS AND THEREBY OPENING AND PROVIDING PRESSURIZED HOLD AND RELEASE ON FRONT AND REAR COVER PANELS OF THE INNER MATCHBOOK, SAID SUPERIMPOSED AND ADHERED REAR OUTER WALL PROVIDING A DOUBLE THICKNESS WHEREBY REINFORCED COMPRESSION IS EXERTED ON THE REAR INNER COVER PANEL OF THE MATCHBOOK FOR FRICTIONALIZED HOLD AND WITHDRAWAL OF THE INNER MATCHBOOK WHEREBY TO FORM A COMPLETE OUTER COVER ADAPTED FOR SAID INNER MATCH FOLDER TO BE INSERTED THEREIN, THROUGH THE TOP OPEN END, THE WIDTH OF THE TOP OPEN END OF THE OUTER COVER LOCK BEING NARROWER THAN THE TOP COVER PANEL OF THE INNER BOOK MATCH TO EXPAND THE FLEXIBLE, EXPANDABLE SPRINGY 